It may still go up. But if you take investment value for inheritance planning out of the potential uses, it well be less than it otherwise would be. Supply and demand. As I say, recent farm land purchasers are less than 50% for actual farming.
This is clearly not the only challenge that farming faces, and retaining investment land for a crop of houses remains a pertinent one.
I don't imagine there is one magic wand that solves all problems. I'm not quite sure that equalising IHT on investment land for inherited wealth is the big social demon that it's currently being presented as. I agree that much more needs to be done.
Farming is not going to be sustainable while big business is allowed to import low priced goods in competition, while not being properly taxed, and having the advantage of having their wage costs subsidised. Particularly having lost Farming subsidies. How is that fair, or supporting Britain.... Of which we are all so proud?